Regulator for a damper assembly

Details Regulator for a damper assembly Regulator for a damper assembly

1977-12-07

1979-12-04

Nilson, Robert G.

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

137504, 13750513, 13750514, G05D 701

Patent

active

041766903

ABSTRACT:
A regulator for a damper assembly operable to control the flow of conditioned air through a supply duct. The regulator includes a pressure responsive member connected to the damper assembly to vary the position thereof within the supply duct in accordance with changes in the conditioned air supply pressure to maintain a substantially constant volume air flow downstream of the damper assembly irrespective of such changes. The regulator further includes control point setting means for obtaining the level of constant volume air flow including force generating elements acting in opposition to the pressure responsive member for providing a first force at a maximum level of constant volume air flow and for further providing a second force at lesser levels of constant volume air flow.

REFERENCES:
patent: 3191615 (1965-06-01), Edwards
patent: 3506038 (1970-04-01), Perry
patent: 3845783 (1974-11-01), Lepeleire
patent: 3958605 (1976-05-01), Nishizu

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